Volkswagen Repair: Intermittent stalling 2 (update?), mass air flow, infinity g20


Question
So, this is the second question I have in relation to the intermittent stalling problem.  We have found the culprit...the sensor in the main air intake.  I guess its shorted out or something.  The car starts and starts back up and runs if the sensor is forced to open the intake plate/door (for lack of a better technical term). Would it be bad for the vehicle to somehow semi permanently rig the flap open to allow for full air from the filter?  What would be the effect on my car?

Answer
Hi Austin;
Sorry I was wrong.  Yeah, it would be bad to hold the flap open.  The flap has a resistance strip that is attached to the flap, and the more it opens the more(or less) the resistance in the mass air flow circuit.  Early Infinity G20's used this system, so did Nissans, and so did the early V12 BMW's they used 2 of them.  The theory that these sensors were based on is called "speed density."  Back in the 80's when they were made, and used widely, they were a good system, but a better system was being perfected with fewer shortcomings than the speed density system, and all of the intake air sensors now are "mass air flow intake systems."  They are simpler, more refined, more acurate, more robust, and just better all around sensors than the speed density ones ever could hope to be.  The problem with holding the opening open is the fuel you are now telling the injectors to allow into the intake valves, and induction system will, in most cases be too much, and the drivability of your car will be poor to say the least.  Try to find a used one, Austin.  That is the best suggestion I can think of right now.  Good luck, and I'm sorry about the earlier message.